border-bottom-color CSS property

The border-bottom-color CSS property sets the color of an element's bottom border. It can also be set with the shorthand CSS properties border-color or border-bottom.

Try it

border-bottom-color: red;
border-bottom-color: #32a1ce;
border-bottom-color: rgb(170 50 220 / 0.6);
border-bottom-color: hsl(60 90% 50% / 0.8);
border-bottom-color: transparent;
<section class="default-example" id="default-example">
  <div class="transition-all" id="example-element">
    This is a box with a border around it.
  </div>
</section>
#example-element {
  background-color: #eeeeee;
  color: black;
  border: 0.75em solid;
  padding: 0.75em;
  width: 80%;
  height: 100px;
}

Syntax

css
/* <color> values */
border-bottom-color: red;
border-bottom-color: #ffbb00;
border-bottom-color: rgb(255 0 0);
border-bottom-color: hsl(100deg 50% 25% / 75%);
border-bottom-color: currentColor;
border-bottom-color: transparent;

/* Global values */
border-bottom-color: inherit;
border-bottom-color: initial;
border-bottom-color: revert;
border-bottom-color: revert-layer;
border-bottom-color: unset;

Values

This property is specified as one value:

<color>

The color of the bottom border.

Formal definition

Initial valuecurrentcolor
Applies toall elements. It also applies to ::first-letter.
Inheritedno
Computed valuecomputed color
Animation typea color

Formal syntax

border-bottom-color = 
  <color>     |
  <image-1D>  

<image-1D> = 
  <stripes()>  

<stripes()> = 
  stripes( <color-stripe># )  

<color-stripe> = 
  <color>                            &&
  [ <length-percentage> | <flex> ]?  

<length-percentage> = 
  <length>      |
  <percentage>

Examples

undefined

A div with a border

HTML

html
<div class="my-box">
  <p>
    This is a box with a border around it. Note which side of the box is
    <span class="red-text">red</span>.
  </p>
</div>

CSS

css
.my-box {
  border: solid 0.3em gold;
  border-bottom-color: red;
  width: auto;
}

.red-text {
  color: red;
}

Result

Specifications

See also